Squrt of 72 is 8.49
squrt of 32 is 5.66
squrt of 481 is 21.93
Answer:
The correct option is C
Step-by-step explanation:
From the question we are told that
The number of independent variables is 
The number of observation is 
Since n is are independent variables then their degree of freedom is 3
The denominator(i.e z) degrees of freedom is evaluated as



So for the numerator (n) the degree of freedom is Df(n) = 3
So for the denominator(i.e z) the degree of freedom is Df(z) = 43
Combine:
<span>g+24.50
</span><span>7g- 52.34
---------------
8g - 27.84 <= answer</span>